// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

#include "ppl/nn/utils/file_data_stream.h"
#include "ppl/nn/common/logger.h"
using namespace std;
using namespace ppl::common;

namespace ppl { namespace nn { namespace utils {

FileDataStream::~FileDataStream() {
    if (fp_) {
        fclose(fp_);
    }
}

RetCode FileDataStream::Init(const char* fname) {
    fp_ = fopen(fname, "w");
    if (!fp_) {
        LOG(ERROR) << "open file[" << fname << "] for writing failed.";
        return RC_OTHER_ERROR;
    }
    return RC_SUCCESS;
}

RetCode FileDataStream::Write(const void* base, uint64_t bytes) {
    auto ret = fwrite(base, bytes, 1, fp_);
    if (ret != 1) {
        LOG(ERROR) << "write [" << bytes << "] failed.";
        return RC_OTHER_ERROR;
    }
    return RC_SUCCESS;
}

}}} // namespace ppl::nn::utils
